class Document db Model Document author db ReferenceProperty User dtst

class Document(db.Model):
    """
    Document
    """
    author = db.ReferenceProperty(User)
    dtstamp = db.DateTimeProperty(auto_now_add=True)
    access = db.StringProperty(default='Private',choices=['Public', 'Private',])
    access_users = db.ListProperty(db.Key)